Hello all,
There is a known issue on some Android devices, where HUD-enabled screenshots appear black when uploading to Zwift activity feed or Strava. Zwift engineers are working to address this in a future Zwift version.
In order to avoid this in the meantime, please tap the green graph icon on affected photos via the End Ride screen, as described in this thread by @Norman. This will disable the HUD in the screenshots and you’ll be able to upload the “clean” version of your chosen photos.
If you’d like to take or preserve a screenshot with your HUD enabled, the best option currently is to use your device’s OS-level screenshot feature to capture your screen at the intended moment.